Well, it's only taken three years but the Hunter River Bridge has now been incorporated into the layout albeit with 'bumper rails' just in case something failed.
It was an easy process to remove temporary structure which has bridged the gap for the past 12 months but I had erred slightly with horizontal alignment, failing to allow for the offset of the track on the bridge. Rectifying that mistake was easy, relocating the bridge about 10mm laterally. The 3mm ply strip which serves as the bridge foundation was screwed to the base board frame.
Since the photos were taken, the base board frame has been covered by 3mm ply which, in due course, will become the Hunter River. Gaps have been filled with tape and jointing compound and the 'bumper rails' have gone.
The bridge will be the major scenic feature on the lower level of the layout but as I mentioned in my previous post, scenery will wait until other areas have completed. I'll then face the challenge of creating a wide expanse of water, something I haven't tried before. So there's still a lot of work to do before I can recreate to the image that started it all ('Northern Exposures' (p 128, photographer Greg Triplett))